diff --git a/requirements.txt b/requirements.txt
index 8365ccc..085cf39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Click==7.0
 Flask==1.0.2
 Flask-HTTPAuth==3.2.4
 Flask-SQLAlchemy==2.3.2
-httplib2==0.12.0
+httplib2==0.18.0
 idna==2.8
 itsdangerous==1.1.0
 Jinja2==2.10
diff --git a/requirements3.txt b/requirements3.txt
index a0956ba..4cfc27b 100644
--- a/requirements3.txt
+++ b/requirements3.txt
@@ -1,7 +1,7 @@
 chardet==2.3.0
 Click==7.0
 Flask==1.0.2
-httplib2==0.12.0
+httplib2==0.18.0
 itsdangerous==1.1.0
 Jinja2==2.10
 language-selector==0.1